bintel scopes
are GSO scope, they are just relabeled.
so GSO, Meade, Celestron... they are all pretty much the same performance wise, you just have to weigh up what comes with them i guess... some say skywatcher dobs have a better finish to them, the meade ones are truss. if you buy a GS over a meade you wont be disappointed, that goes the other way around too...
it comes down to what you can afford in the end.
i have a GSO 8" that i bought as a dob but now have it equatorially mounted. the optics are pretty darn good.